WAGO 750-462 Series User manual

Fieldbus Independent
I/O Modules
2 AI Thermocouple
750-462 (/xxx-xxx)
Manual
Version 1.0.3

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright 2007 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
E-Mail: [email protected]
We wish to point out that the software and hardware terms as well as the
trademarks of companies used and/or mentioned in the present manual are
generally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1Important Comments ................................................................................. 4
1.1 Legal Principles........................................................................................4
1.1.1 Copyright ............................................................................................. 4
1.1.2 Personnel Qualification ....................................................................... 4
1.1.3 Intended Use ........................................................................................ 4
1.2 Symbols .................................................................................................... 5
1.3 Number Notation...................................................................................... 5
1.4 Safety Notes ............................................................................................. 6
1.5 Scope ........................................................................................................ 6
2I/O Modules ................................................................................................. 7
2.1 Analog Input Modules.............................................................................. 7
2.1.1 750-462 (/xxx-xxx) [2 AI Thermocouple]........................................... 7
2.1.1.1 View................................................................................................ 7
2.1.1.2 Variations........................................................................................ 8
2.1.1.3 Description...................................................................................... 9
2.1.1.4 Display Elements .......................................................................... 10
2.1.1.5 Schematic Diagram....................................................................... 10
2.1.1.6 Technical Data .............................................................................. 11
2.1.1.7 Process Image ...............................................................................12
2.1.1.7.1 I/O Modules for Thermocouples.............................................. 12
2.1.1.7.1.1 Standard Data Format.......................................................... 13
2.1.1.7.2 I/O Modules for Voltage Measuring (mV) .............................. 17
2.1.1.8 Examples of Connection ............................................................... 18

4 • Important Comments
Legal Principles
WAGO-I/O-SYSTEM 750
I/O Modules
1 Important Comments
To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanations are
carefully read and abided by.
1.1 Legal Principles
1.1.1 Copyright
This manual is copyrighted, together with all figures and illustrations
contained therein. Any use of this manual which infringes the copyright
provisions stipulated herein, is not permitted. Reproduction, translation and
electronic and photo-technical archiving and amendments require the written
consent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will
entail the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform
modifications allowed by technical progress. In case of grant of a patent or
legal protection of utility patents all rights are reserved by WAGO
Kontakttechnik GmbH & Co. KG. Products of other manufacturers are always
named without referring to patent rights. The existence of such rights can
therefore not be ruled out.
1.1.2 Personnel Qualification
The use of the product detailed in this manual is exclusively geared to
specialists having qualifications in PLC programming, electrical specialists or
persons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability
resulting from improper action and damage to WAGO products and third party
products due to non-observance of the information contained in this manual.
1.1.3 Intended Use
For each individual application, the components supplied are to work with a
dedicated hardware and software configuration. Modifications are only
permitted within the framework of the possibilities documented in the
manuals. All other changes to the hardware and/or software and the non-
conforming use of the components entail the exclusion of liability on part of
WAGO Kontakttechnik GmbH & Co. KG.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

Important Comments • 5
Symbols
WAGO-I/O-SYSTEM 750
I/O Modules
1.2 Symbols
Danger
Always abide by this information to protect persons from injury.
Warning
Always abide by this information to prevent damage to the device.
Attention
Marginal conditions must always be observed to ensure smooth operation.
ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe
the precautionary measure for handling components at risk.
Note
Routines or advice for efficient use of the device and software optimization.
More information
References on additional literature, manuals, data sheets and INTERNET
pages
1.3 Number Notation
Number Code Example Note
Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
Within ',
Nibble separated with dots

6 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Notes
Warning
Switch off the system prior to working on bus modules!
In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.
The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials is: e.g. aerosols,
silicones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component
environment, then additional measures are to be taken:
- installation of the components into an appropriate enclosure
- handling of the components only with clean tools and materials.
Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.
Do not use any contact spray. The spray may impair the functioning of the
contact area.
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation
rooms. Access must only be given via a key or tool to authorized qualified
personnel.
The relevant valid and applicable standards and guidelines concerning the
installation of switch boxes are to be observed.
ESD (Electrostatic Discharge)
The modules are equipped with electronic components that may be destroyed
by electrostatic discharge. When handling the modules, ensure that the
environment (persons, workplace and packing) is well grounded. Avoid
touching conductive components, e.g. gold contacts.
1.5 Scope
This manual describes the Analog Input Module 750-462 (/xxx-xxx)
2 AI Thermocouple of the modular WAGO-I/O-SYSTEM 750.
Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

750-462 (/xxx-xxx) [2 AI Thermocouple] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Input Modules
2.1.1 750-462 (/xxx-xxx) [2 AI Thermocouple]
2-Channel Analog Input Module for Thermocouples
2.1.1.1 View
+TC +TC
13 14
C
D
B
A
-TC -TC
MM
SS
750-462
+TC 2
Data contacts
Function AI 2
-TC 2
Common
(ground)
Function AI 1
+TC 1
Error AI 2
Error AI 1
-TC 1
Common
(ground)
Shield
(screen)
Shield
(screen)
Fig. 2.1.1-1: 2- Channel Analog Input Module 750-462 g046200e

8 • 750-462 (/xxx-xxx) [2 AI Thermocouple]
Variations
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.2 Variations
Item-No. Designation Description
Thermocouples
750-462 2 AI Thermocouple/K/
-100 °C ... +1370 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type K, Diagn.
Measuring range: -100 °C ... +1370 °C
750-462/000-001 2 AI Thermocouple/S/
-50 °C ... +1700 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type S, Diagn.
Measuring range: -50 °C ... +1700 °C
750-462/000-002 2 AI Thermocouple/T/
-100 °C ... +400 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type T, Diagn.
Measuring range: -100 °C ... +400 °C
750-462/000-006 2 AI Thermocouple/J/
-100 °C ... +1200 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type J, Diagn.
Measuring range: -100 °C ... +1200 °C
750-462/000-007 2 AI Thermocouple/B/
600 °C ... +1800 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type B, Diagn.
Measuring range: 600 °C ... +1800 °C
750-462/000-008 2 AI Thermocouple/E/
-100 °C ... +1000 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type E, Diagn.
Measuring range: -100 °C ... +1000 °C
750-462/000-009 2 AI Thermocouple/N/
-100 °C ... +1300 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type N, Diagn.
Measuring range: -100 °C ... +1300 °C
750-462/000-010 2 AI Thermocouple/R/
0 °C ... +1700 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type R, Diagn.
Measuring range: 0 °C ... +1700 °C
750-462/000-011 2 AI Thermocouple/U/
-25 °C ... +600 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type U, Diagn.
Measuring range: -25 °C ... +600 °C
750-462/000-050 2 AI Thermocouple/K/
-100 °C ... +1370 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type K, Diagn.
Measuring range: -100 °C ... +1370 °C
Without cold junction compensation
750-462/000-061 2 AI Thermocouple/U/
-25 °C ... +600 °C/
Diagn.
2-Channel Analog Input Module,
Thermocouple Type U, Diagn.
Measuring range: -25 °C ... +600 °C
Without cold junction compensation
Voltage measuring
750-462/000-003 2 AI Voltage measuring
±120 mV/ Diagn.
2-Channel Analog Input Module,
Voltage measuring, Diagn.
Measuring range: ±120 mV

750-462 (/xxx-xxx) [2 AI Thermocouple] • 9
Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Description
The 750-462 analog input module and its 750-462/xxx-xxx variations allow
thermocouples to be measured in the field. It can also be used to measure
voltages (mV).
Depending on the operating mode, the voltage value is converted to a
temperature or directly send out by the module. A microprocessor within the
module is used for converting and linearizing the measured voltage value into
a numeric value proportional to the temperature of the selected thermocouple.
The operating mode of the 750-462 basic module described in this manual is
for a type K thermocouple.
The analog module has two input channels allowing the direct connection of
two thermocouples. For example, two thermocouples can be connected either
to +TC1 and -TC1 or to +TC2 and -TC2.
The shield (screen) is directly connected to the DIN rail. A capacitive
connection is made automatically when snapped onto the DIN rail.
An optocoupler is used for electrical isolation between the bus and the field
side.
The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green function LED. Overrange or underflow
of the measuring range is indicated via a red error LED.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
Attention
This module has no power contacts. For field supply to downstream I/O
modules, a supply module will be needed.
The analog input module 750-462 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).

10 • 750-462 (/xxx-xxx) [2 AI Thermocouple]
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Display Elements
LED Channel State Function
off No operational readiness or the internal data bus
communication is interrupted
A
green
on Operational readiness and trouble-free internal data
bus communication
off Normal operation
750-462,
750-462/000-001,
-002, -006, -007,
-008, -009 ,-010,
-011, -050 ,-061,
Overrange/underflow of the
admissible measuring range
B
red
1
on
750-462/000-003 -
off No operational readiness or the internal data bus
communication is interrupted
C
green
on Operational readiness and trouble-free internal data
bus communication
off Normal operation
750-462,
750-462/000-001,
-002, -006, -007,
-008, -009 ,-010,
-011, -050 ,-061,
Overrange/underflow of the
admissible measuring range
13 14
C
D
B
A
D
B
C
A
Fig. 2.1.1-2:
Display elements
g045202x
D
red
2
on
750-462/000-003 -
2.1.1.5 Schematic Diagram
Shield
(screen)
+TC1 +TC2
-TC1
+TC
270pF
-TC2 -TC
20nF
270pF
A
DLogicMUX
J Comp
Common
(ground)
Function
Error
Shield
(screen)
Common
(ground)
1
2
3
4
5
6
7
8
750-462
Fig. 2.1.1-3: 2-Channel Analog Input Module 750-462 g046201e